Starting at lunchtime Thursday, customers at 14,000 participating restaurants across the country will receive a MacCoin with the purchase of a Big Mac while supplies last, the company announced in a news release.

From Friday through the end of the year, customers can redeem a MacCoin for a free Big Mac at participating restaurants.

The coins have the following five designs, each paying tribute to a different decade:

The '70s MacCoin's theme is flower power.

The '80s MacCoin pays tribute to pop art.

The '90s MacCoin has bold, abstract shapes.

The '00s MacCoin focuses on technology.

The '10s MacCoin honors "the evolution of communication."

According to WPXI, the iconic burger was created in the Pittsburgh area by franchisee Jim Delligatti.

“When my great-grandfather Jim Delligatti invented the Big Mac at his grill in Uniontown, Pennsylvania, he just wanted to make his local customers happy,” said Nick Delligatti, fourth-generation McDonald’s owner-operator and great-grandson of Delligatti. “August 2 would have been my great-grandfather’s 100th birthday, and I believe he would be very proud knowing his humble sandwich has made such a lasting impression that people all around the world can enjoy it wherever they find a McDonald’s.”

Tiger’s Blood, Blue Hawaiian and Bahama Mama are also joining the lineup for a limited time.

“Sonic’s guests are game to try adventurous and fun flavors, so we’ve made it our mission to deliver the best of both worlds when it comes to innovation and variety,” Sonic executive Scott Uehlein said in a news release. “The entire Snow Cone Slush lineup – including Pickle Juice, Bahama Mama, Blue Hawaiian and Tiger’s Blood – has a distinctly summertime vibe, allowing our guests to create new summer memories.”

5. Chipotle Mexican Grill: Although the restaurant chain isn't running a promotion for nurses this week, USA Today reports that participating locations will offer nurses a buy one, get one free burrito, bowl, salad or order of tacos on June 5. Nurses must present a work ID to claim their freebie. Read more here.

If you're without a significant other this Valentine's Day – or even if you've found a new sweetie and want to score some free wings – participating Hooters locations will help you shred your ex. Shred online and print a coupon to take to the restaurant or bring in a photo of your former love and let Hooters shred it. In return, you can buy 10 boneless wings and get 10 free – and maybe a bit of catharsis. Learn more at www.hooters.com.

Take advantage of the restaurant's "Qdoba for a Kiss" promotion, and you'll be able to buy one entrée and get one free at participating restaurants on Feb. 14. Bring your significant other to kiss, smooch a photo of your favorite celebrity on your cellphone or even pucker up to a burrito – anything goes!

Outback Steakhouse offers a Valentine's Day meal for two at participating restaurants from Feb. 12-16. For a special price (which varies by location), a couple can share a Bloomin' Onion, choose two entrees (center cut sirloin, grilled salmon or Alice Springs chicken), two sides, two salads and cheesecake for dessert. Learn more at www.outback.com.

California Pizza Kitchen

Enjoy a "Sweet Deal for Two" at participating California Pizza Kitchen locations from Feb. 14 to 18, and you'll get an appetizer, two entrees and a dessert from their special menu for $35. Choose from among three appetizers, 10 entrees or four desserts. As a further incentive, if you tag your sweetie or best friend in California Pizza Kitchen's Facebook post with the hashtag #CPKgiveaway, you'll be entered to win a $100 gift card. Learn more at www.cpk.com.

The chain said the recall was out of "an abundance of caution" after samples of one product from a single production day showed positive for listeria monocytogenes bacteria. Exposure to the bacteria can cause fever and diarrhea, with particularly dangerous symptoms for pregnant women and unborn children.

The chain has announced that it’s rolling out its popular brown bread to grocery stores nationwide. The bread will be available to customers for purchase in three different forms: an eight-pack of heat-and-serve dinner rolls, a two-pack with mini baguettes or pre-sliced sandwich loaves.

People who have tried it reportedly have confirmed that it’s just as soft, chewy and slightly sweet as it is when you visit the Cheesecake Factory – just heat up the rolls or baguettes in the oven for five minutes at 350 degrees. Once they’re done, top them with butter or your favorite spread to add flavor.

Keith Miller, who owns three Subways in North Carolina, told The Washington Post that the ingredients in the sandwich cost him about $2, but after paying his employees and adding up all the overhead — electric, gas, rent and supplies — his store brings in a measly profit on the hoagies. When the company decided to drop the prices of its famous subs to $4.99, Miller and a number of other franchise owners sent a letter telling the higher-ups that such a move would have them staring down bankruptcy.

Subway isn’t the only company to keep prices low with the hopes of enticing hungry customers; Taco Bell, Wendy’s and McDonald’s both boast dollar menus. You’d probably have a tough time finding a franchise owner happy with the low-priced items, but Subway owners have been the most vocal about their complaints. They recently wrote a petition to the big wigs at the company, asking them to reconsider. Owners admitted that the cheap options bring in more customers but that even the increase in traffic “insufficient to make up for the lost margins.” The petition was signed by almost 900 people in 39 states.

Subway says the promotions are optional and that the majority of franchise owners don’t share Miller’s views. In a statement given to the Post, Subway claimed “we are in constant communication with our Franchisees and Development Agents … they are actively involved in many aspects of our decision-making process, and we welcome and encourage their feedback.”

As the minimum wage continues to rise, the prices of some products (like Subway’s sandwiches) haven’t risen to the level necessary for owners to make a profit. Miller says that when he bought his first franchise, he was bringing in profit margins as high as 18 percent. But that number has drastically dropped in recent years.

There are also a number of other problems facing franchise owners. The fast food restaurant industry has become more crowded and, on top of that, people are shopping less and less at fast food stops. And for most owners, the problems show no sign of letting up.

First lady Melania Trump, along with second lady Karen Pence, traveled to Texas on Wednesday to visit with first responders and check on Hurricane Harvey relief efforts. And if there’s anything politicians (or in this case, politicians’ spouses) love to do when they’re on a visit, it’s make a stop at a purveyor of local cuisine. Trump and Pence flew through Corpus Christi, which means Whataburger.

According to social media reports (including tweets from reporters along for the trip, as well as a White House official), the first and second lady stopped by the venerable Texas burger chain and walked out with at least some of those famous fries. The rest of their order is unknown (so far), but the tweets about the pit stop are quite a journey.